V4L/DVB (9831): upd64083: convert to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 97 insertions, 69 deletions

diff --git a/drivers/media/video/upd64083.c b/drivers/media/video/upd64083.c
index 9521ce004dcc..58412cb9c01a 100644
--- a/drivers/media/video/upd64083.c
+++ b/drivers/media/video/upd64083.c
@@ -26,7 +26,7 @@
 #include <linux/kernel.h>
 #include <linux/i2c.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
 #include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv.h>
 #include <media/upd64083.h>
@@ -51,11 +51,17 @@ enum {
 };
 
 struct upd64083_state {
+        struct v4l2_subdev sd;
         u8 mode;
         u8 ext_y_adc;
         u8 regs[TOT_REGS];
 };
 
+static inline struct upd64083_state *to_state(struct v4l2_subdev *sd)
+{
+        return container_of(sd, struct upd64083_state, sd);
+}
+
 /* Initial values when used in combination with the
    NEC upd64031a ghost reduction chip. */
 static u8 upd64083_init[] = {
@@ -68,34 +74,24 @@ static u8 upd64083_init[] = {
 
 /* ------------------------------------------------------------------------ */
 
-static void upd64083_log_status(struct i2c_client *client)
-{
-        u8 buf[7];
-
-        i2c_master_recv(client, buf, 7);
-        v4l_info(client, "Status: SA00=%02x SA01=%02x SA02=%02x SA03=%02x "
-                      "SA04=%02x SA05=%02x SA06=%02x\n",
-                buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
-}
-
-/* ------------------------------------------------------------------------ */
-
-static void upd64083_write(struct i2c_client *client, u8 reg, u8 val)
+static void upd64083_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 {
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
         u8 buf[2];
 
         buf[0] = reg;
         buf[1] = val;
-        v4l_dbg(1, debug, client, "write reg: %02x val: %02x\n", reg, val);
+        v4l2_dbg(1, debug, sd, "write reg: %02x val: %02x\n", reg, val);
         if (i2c_master_send(client, buf, 2) != 2)
-                v4l_err(client, "I/O error write 0x%02x/0x%02x\n", reg, val);
+                v4l2_err(sd, "I/O error write 0x%02x/0x%02x\n", reg, val);
 }
 
 /* ------------------------------------------------------------------------ */
 
 #ifdef CONFIG_VIDEO_ADV_DEBUG
-static u8 upd64083_read(struct i2c_client *client, u8 reg)
+static u8 upd64083_read(struct v4l2_subdev *sd, u8 reg)
 {
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
         u8 buf[7];
 
         if (reg >= sizeof(buf))
@@ -107,67 +103,94 @@ static u8 upd64083_read(struct i2c_client *client, u8 reg)
 
 /* ------------------------------------------------------------------------ */
 
-static int upd64083_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int upd64083_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
 {
-        struct upd64083_state *state = i2c_get_clientdata(client);
-        struct v4l2_routing *route = arg;
-
-        switch (cmd) {
-        case VIDIOC_INT_G_VIDEO_ROUTING:
-                route->input = (state->mode >> 6) | (state->ext_y_adc >> 3);
-                route->output = 0;
-                break;
-
-        case VIDIOC_INT_S_VIDEO_ROUTING:
-        {
-                u8 r00, r02;
-
-                if (route->input > 7 || (route->input & 6) == 6)
-                        return -EINVAL;
-                state->mode = (route->input & 3) << 6;
-                state->ext_y_adc = (route->input & UPD64083_EXT_Y_ADC) << 3;
-                r00 = (state->regs[R00] & ~(3 << 6)) | state->mode;
-                r02 = (state->regs[R02] & ~(1 << 5)) | state->ext_y_adc;
-                upd64083_write(client, R00, r00);
-                upd64083_write(client, R02, r02);
-                break;
-        }
-
-        case VIDIOC_LOG_STATUS:
-                upd64083_log_status(client);
-                break;
+        struct upd64083_state *state = to_state(sd);
+        u8 r00, r02;
+
+        if (route->input > 7 || (route->input & 6) == 6)
+                return -EINVAL;
+        state->mode = (route->input & 3) << 6;
+        state->ext_y_adc = (route->input & UPD64083_EXT_Y_ADC) << 3;
+        r00 = (state->regs[R00] & ~(3 << 6)) | state->mode;
+        r02 = (state->regs[R02] & ~(1 << 5)) | state->ext_y_adc;
+        upd64083_write(sd, R00, r00);
+        upd64083_write(sd, R02, r02);
+        return 0;
+}
 
 #ifdef CONFIG_VIDEO_ADV_DEBUG
-        case VIDIOC_DBG_G_REGISTER:
-        case VIDIOC_DBG_S_REGISTER:
-        {
-                struct v4l2_register *reg = arg;
+static int upd64083_g_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        if (!v4l2_chip_match_i2c_client(client,
+                                reg->match_type, reg->match_chip))
+                return -EINVAL;
+        if (!capable(CAP_SYS_ADMIN))
+                return -EPERM;
+        reg->val = upd64083_read(sd, reg->reg & 0xff);
+        return 0;
+}
 
-                if (!v4l2_chip_match_i2c_client(client,
+static int upd64083_s_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        if (!v4l2_chip_match_i2c_client(client,
                                 reg->match_type, reg->match_chip))
-                        return -EINVAL;
-                if (!capable(CAP_SYS_ADMIN))
-                        return -EPERM;
-                if (cmd == VIDIOC_DBG_G_REGISTER) {
-                        reg->val = upd64083_read(client, reg->reg & 0xff);
-                        break;
-                }
-                upd64083_write(client, reg->reg & 0xff, reg->val & 0xff);
-                break;
-        }
+                return -EINVAL;
+        if (!capable(CAP_SYS_ADMIN))
+                return -EPERM;
+        upd64083_write(sd, reg->reg & 0xff, reg->val & 0xff);
+        return 0;
+}
 #endif
 
-        case VIDIOC_G_CHIP_IDENT:
-                return v4l2_chip_ident_i2c_client(client, arg,
-                                V4L2_IDENT_UPD64083, 0);
+static int upd64083_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_chip_ident *chip)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_UPD64083, 0);
+}
 
-        default:
-                break;
-        }
+static int upd64083_log_status(struct v4l2_subdev *sd)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+        u8 buf[7];
 
+        i2c_master_recv(client, buf, 7);
+        v4l2_info(sd, "Status: SA00=%02x SA01=%02x SA02=%02x SA03=%02x "
+                      "SA04=%02x SA05=%02x SA06=%02x\n",
+                buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
         return 0;
 }
 
+static int upd64083_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+        return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops upd64083_core_ops = {
+        .log_status = upd64083_log_status,
+        .g_chip_ident = upd64083_g_chip_ident,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+        .g_register = upd64083_g_register,
+        .s_register = upd64083_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_video_ops upd64083_video_ops = {
+        .s_routing = upd64083_s_routing,
+};
+
+static const struct v4l2_subdev_ops upd64083_ops = {
+        .core = &upd64083_core_ops,
+        .video = &upd64083_video_ops,
+};
+
 /* ------------------------------------------------------------------------ */
 
 /* i2c implementation */
@@ -176,6 +199,7 @@ static int upd64083_probe(struct i2c_client *client,
                           const struct i2c_device_id *id)
 {
         struct upd64083_state *state;
+        struct v4l2_subdev *sd;
         int i;
 
         if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -187,19 +211,23 @@ static int upd64083_probe(struct i2c_client *client,
         state = kmalloc(sizeof(struct upd64083_state), GFP_KERNEL);
         if (state == NULL)
                 return -ENOMEM;
-        i2c_set_clientdata(client, state);
+        sd = &state->sd;
+        v4l2_i2c_subdev_init(sd, client, &upd64083_ops);
         /* Initially assume that a ghost reduction chip is present */
         state->mode = 0;  /* YCS mode */
         state->ext_y_adc = (1 << 5);
         memcpy(state->regs, upd64083_init, TOT_REGS);
         for (i = 0; i < TOT_REGS; i++)
-                upd64083_write(client, i, state->regs[i]);
+                upd64083_write(sd, i, state->regs[i]);
         return 0;
 }
 
 static int upd64083_remove(struct i2c_client *client)
 {
-        kfree(i2c_get_clientdata(client));
+        struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+        v4l2_device_unregister_subdev(sd);
+        kfree(to_state(sd));
         return 0;
 }